| A | B |
|---|
| geosphere | Layer of Earth under both the atmosphere and the oceans; composed of the core, mantle and crust |
| atmosphere | the envelope of gases surrounding the earth |
| hydrosphere | the portion of earth that is water |
| litosphere | the solid part of the earth consisting of the crust and outer mantle |
| core | the inner part of the earth. Also, the central part of the Earth. |
| crust | The thin and solid outermost layer of the Earth |
| mantle | the thick layer rock below the crust |
| Biosphere | part of Earth in which life exists including land, water, and air or atmosphere |
| OUter Core | A layer of molten iron and nickel that surrounds the inner core of Earth. |
| Inner core | solid, dense center of the Earth |
